Gate전극의 전도성에 의한 유기물 링발진기의 특성에 관한 연구

한현 한밭대학교 대학원 2012 국내석사

용액공정이 가능한 유기반도체 물질은 다양한 인쇄공정인 Gravure printing, screen printing, 그리고 Ink-jet printing 과 같은 자유로운 인쇄 방법에 의해서 저가의 빠른 공정 속도로 다양한 전자기기를 제작하는 것이 가능하다는 그 장점을 가지고 있다. 유기물질의 고유의 특성인 낮은 전하 이동도 와 낮은 산화안정성 등의 단점을 가지고 있지만 기존의 무기물을 이용한 소자에 비해 초경량, 초박형, 저가격, 유연성, 저온 제작 등의 장점과 더불어 많은 연구가 진행되고 있어 최근에는 산화안정성이 크게 개선되었으며, 전하 이동도 면에서도 비정질 실리콘 기반 (>1cm2/Vs)의 소자와 견줄 수 있을 정도 까지 이르렀다. 특히, 용액공정용 유기박막 트랜지스터 (OTFTs) 는 유기전자의 기본이 되는 소자로써 RFID tags, 디스플레이 구동소자, 센서, E-paper 등 그 적용범위가 광범위 하여 그 관심이 증가하고 있다. Complementary Metal-Oxide-semiconductor (CMOS) 인버터는 여러 종류의 회로에서 가장 많이 쓰이는 소자이다. 이러한 CMOS는 p-형, n-형 의 두 종류의 반도체가 사용되는데 유기반도체의 용액공정을 통해서 제작하기 위해서는 여러 가지 인쇄 공정이 있다. micro-contact printing, Ink-jet printing 과 같은 다양한 Patterning 방법이 있는데 이와 같은 다양한 Patterning 방법들 중에서 잉크젯 인쇄 공정은 제작비용을 절감할 수 있으며16, 사용하는 물질의 낭비를 막을 수 있고, non-contact 방식으로 device를 제작할 수 있으며 기존의 photolithography 공정과는 다르게 마스크를 사용하지 않는 등 다양한 장점을 지녔다.1본 연구에서 개발된 OTFT는 P 형, N 형 모두 0.1cm2/V.s얻었으며, 인버터의 Voltage Transfer Curve역시 안정적으로 얻었고 10~15정도의 Gain을 얻었다. 더 나아가서, 본 연구에서 개발된 인버터를 5-stage ring oscillator circuit에 적용하여 약 30kHz정도의 유기물 Ring oscillators(R.O) 특성을 얻었다. 또한, Au Gate 메탈의 전도도가 RO의 스위칭 속도에 미치는 영향을 알아보기 위하여, 서로 다른 전도도를 보이는 두께의 Au 전극을 이용하여 RO의 전기적 특성을 평가해보았으며 전도도에 따라 달라지는 트랜지스터 및 유기물 링발진기 소자의 특성을 확인하였다. Solution processed conjugated molecules enable to manufacture various electronic devices by unconventional and cost effective patterning methods such as inkjet, screen, or gravure printing with a high throughput. Although the organic field-effect transistors (OFETs) using conjugated molecules as an active layer are not suitable for electronics requiring high charge carrier mobility due to intrinsic limitation of those materials, the advantage in manufacturing processes make them ideal for large-area, flexible, transparent, and disposable electronic devices such as drivers for flexible or transparent displays, digital circuits for radio frequency identification (RFID) tags, sensors, and memories. Moreover, the charge carrier mobility of state-of-the-art organic semiconductors is comparable with amorphous silicon so that it is expected that many applications will be replaced by cost-effective solution processed OFETs in near future. To realize advanced integrated CMOS circuits, those p-channel or n-channel conjugated molecules must be patterned. However, conventional patterning processes such as photolithography are not suitable since conjugated molecules are very weak under UV light illumination and cost of manufacturing facility is also very high. Therefore various novel patterning methods have researched such as micro contact printing or inkjet printing. Among those methods, inkjet has a variety of advantages such as removal of need for masks, which lead to cost-savings, efficient use of materials and waste elimination, non-contact deposition method (little contamination). Here we demonstrate high performance inkjet printed p-channel and n-channel top-gate/bottom-contact polymer field-effect transistors (FETs), and applications to elementary organic complementary inverter and ring oscillator circuits. We have obtained high field-effect mobility more than 0.1 cm2/Vs for both of p-channel and n-channel FETs, and the CMOS polymer ring oscillator showed very high operating frequency of 10 KHz. In addition, we did evaluation of ring oscillator circuit characteristics using different conductivities gate materials.

영어 신문반 활동을 통한 쓰기 공부

한현 경상대학교 교육대학원 2001 국내석사

The purpose of this thesis is to find effective ways to teach writing in English through an English Newspaper Club. For this purpose, an English Newspaper Club was organized. Students participated in several kinds of activities to produce English newspapers. These activities led them to write for various purposes, improving their writing. The reason newspaper activities were chosen to improve writing ability, is that they include many kinds of possible activities that make students write different topics and styles. In addition, they met achievement levels of the Seventh English Education Curriculum. Students can also develop integrated language skills through organizing and interpreting information in this real situation. It is now thought that because of the increasing importance of written English, it is time to improve education methods to accommodate this new necessity. The second chapter deals with categories of writing activities, definitions of writing ability, writing activities and levels for first year high school students. The third chapter examines the functions of newspapers, and the possible types of writing for newspapers, such as news, feature, opinion and advertisement, for first year students. The fourth chapter explains the organizational background of an English Newspaper Club and the activities to take place. Then it suggests methods for teaching written English skills through an English newspaper club. The categories for the methods are: (1) writing activities for news articles, (2) writing activities for feature articles, (3) writing activities for opinion articles, (4) writing activities for advertisement articles, and (5) writing activities for a bulletin board, which the students need. These activities include basic practices and guides for students to write for newspapers. The fifth chapter shows examples of writing activities, which students covered themselves, such as news, feature, opinion, and advertisements articles, and notices of bulletin boards. In the sixth chapter, the thesis is summarized and proposes several opinions for teaching written English.

政策手段으로서의 租稅의 役割

한현 서울대학교 1975 국내석사

북한의 핵문제의 국제화와 대응

한현 延世大學校 1995 국내석사

병원 연봉제 도입에 관한 연구 : 방사선사를 중심으로

한현 중앙대학교 행정대학원 2000 국내석사

매체 유형과 이용 상황에 따른 광고소구유형별 광고효과 : 광고관여도의 역할을 중심으로

한현 부산대학교 2001 국내석사

(The) role of strain in epitaxial oxide thin films for energy applications

한현 Pohang University of Science and Technology 2018 국내박사

Energy and environmental issues such as energy supplies, energy costs, environmental diseases and greenhouse gas emissions are spurring the demand for environmentally harmless renewable energy sources, including solar energy, hydropower energy, wind energy, tidal energy, biomass energy, geothermal energy. Recently, the strain in oxide thin film heterostructures has known that it greatly affect various physical properties, such as ferroelectricity, magnetic ordering, ion conductivity, electron mobility. The reason for this diverse change in the physical properties is mostly due to their strongly correlated properties in metal oxide thin films. In this regards, this thesis focuses on the energy related research based on metal oxide thin films using the flexibility of the property alteration. Among the renewable energy fields, the role of epitaxial strain in ferroelectric photovoltaics and exsolution for fuel cells will be discussed. The first topic is about ferroelectric photoltaic effect. Ferroelectric photovoltaics (FPVs) have drawn much attention owing to their high stability, environmental safety, anomalously high photovoltages, coupled with reversibly switchable photovoltaic responses. Among various factors influencing the FPV efficiency, narrow Eg and large polarization are known as the two most important factors. This is because the absorption of sun light by ferroelectric materials is limited by their Eg values and large polarization is crucial to efficiently separate the photo-generated exciton (electron-hole) pairs. Here, we present an easy and simple method of simultaneously achieving the above noted two important goals of FPVs, i.e., reduced Eg and enhanced polarization, by applying a film strain to epitaxially grown hexagonal YbFeO3 (h-YbFO) thin-film heterostructures. We further show the switchable FPV effect of these h-YbFO thin-film devices. The crystal structure of h-YbFO is featured by an alternative stacking of two distinct layers: one layer of corner-linked FeO5 bipyramids and the other layer of trivalent Yb3+ cations (Figure 1a). We demonstrate enhanced FPV efficiency by suitably exploiting the substrate-induced film strain. More explicitly, a compressive-strained h-YbFO/Pt/MgO heterojunction device shows ~3 times enhanced photovoltaic efficiency than that of a tensile-strained h-YbFO/Pt/Al2O3 device or multiferroic BiFeO3 which is known as the prototypic FPV. The origin of this enhanced PCE is investigated by examining the substrate-dependent band gap (Eg) and polarization (Pr), in conjunction with first-principles calculations. The second theme is about the exsolution of nanoparticles for renewable energy and catalysis. Catalytic metal particles dispersed on oxide surfaces play a key role in catalysis, energy conversion, and energy storage industries, including batteries, fuel cells, electrolysis cells. These catalytic metal particles have been prepared mainly by deposition techniques. However, the deposited particles mostly show limitation of particle size and distribution control, and degradation by agglomeration or carbon coking. The exsolution of the B-site ions from perovskite lattices (ABO3) under reduction conditions is emerging as an alternative, which shows possibility of in situ growth of nanoparticles. Compared to deposition procedures, this process shows higher cost- or time-efficiency, good thermal stability, and resistance to coking problems. However, the exsolution from stoichiometric ABO3 perovskites has primarily shown (i) a limited number of active cations, (ii) preferential occurrence within bulk (inside) rather than surface, and (iii) a slow speed of particle generation. To overcome these problems, the A-site deficient perovskites were employed to promote the B-site caion exsolution on surfaces, leading to both A-site and oxygen deficiencies that make easier ion diffusion and electron generation during the reduction by hydrogen. It was further revealed that voltage-driven reduction is two orders of magnitude faster than conventional reduction and yields a small particle size (~15 nm) and the highest population density of ~400 particles∙μm−2, resulting in outstanding electrochemical activity. To date, the studies on such exsolution have been performed mainly in bulk polycrystalline ceramics. Unlike bulk systems, thin-film heterostructures can induce strain in a film lattice because of the lattice mismatch between substrate and film, which affects various physical properties such as ferroelectricity, electron mobility, ionic conductivity and electrocatalysis. In particular, thin-film oxide fuel cells are currently attracting renewed attention owing to advantages of low temperature operation and portable device applications. Here, we demonstrate an unprecedentedly high degree of exsolution of nanoparticles in strained epitaxial thin films (particle density of 1177 particles∙μm−2, size of 5 nm) at a temperature as low as 550 oC. Compressive-stained films show a larger number of exsolved particles and higher thermal stability than tensile-strained films. The strain-driven in situ exsolution further offers rapid release of particles, good coking resistance, numerous particles even in μm-thickness, and wide tunability of particle growths. This finding opens a new way to design and development of catalytic functional materials and portable energy applications. The present studies will (i) offer a new standard for selecting substrates towards optimal design of ferroelectric optoelectronics and photovoltaic devices and (ii) opens a new way to design and development of catalytic functional materials and portable energy applications.

시뮬레이터 기반 위험인지상황에서 운전자의 행동특성에 관한 연구

한현서 국민대학교 자동차공학전문대학원 2020 국내석사

최근 위험상황에서 운전자의 인지반응 특성을 이용한 고의 교통사고가 증가하여 점차 지능화, 조직화 되는 경향을 보이며, 선량한 운전자들이 받는 경제적 피해부담이 증가하고 있다. 이는 경제사회적으로 막대한 손실을 초래할 뿐만 아니라 장기적 관점에서 사회불안요소로 작용할 수 있는 상황이다. 국내에는 고의 교통사고를 판별할 수 있는 체계적인 감정기법이 부재하며 운전자의 고의성 여부를 판단할 수 있는 “위험 인지반응시간”데이터베이스 등이 구축되어 있지 않다. 국내 운전자의 인지반응시간 및 행동특성에 관한 연구는 주로 도로설계기준의 확인 위주로 수행되어 교통사고 감정에 활용하기에 적절하지 않다. 따라서 국내 교통 환경 및 내국인의 특성을 반영한 운전자의 행동특성 연구가 필요한 실정이다. 본 논문에서는 도심로 내에서 발생하는 4가지 교통사고 위험상황(맞은편 차량의 중앙선 침범, 끼어들기, 보행자 무단횡단, 교차로 위험상황)을 시뮬레이터에 구현한 뒤 20대, 30대, 40대 실험참가자를 대상으로 위험상황 발생 시 대처방법 및 인지반응시간 등을 확인하였고, 이를 연령대, 성별, 위험상황, 속도별로 통계적으로 유의미한 차이가 있는지에 대해 분석하고 제시하였다. Recently, the number of intentional traffic accidents using driver cognitive response characteristics has increased, showing a tendency to become intelligent and organized gradually, and the burden of economic damage suffered by good drivers has increased. This is not only an economic and social loss, but also a situation that can serve as a social anxiety In Korea, there are no systematic appraisal techniques for determining intentional traffic accidents, and there are no "Perception-response time" databases that can determine drivers' intent. Research on the cognitive reaction time and behavioral characteristics of domestic drivers is mainly conducted to verify road design standards and is not suitable for use in traffic accident feelings. Therefore, it is necessary to study the behavioural characteristics of drivers that reflect the domestic traffic environment and characteristics of locals. In this paper, we implemented four traffic accident hazard situations (intervention of the centerline of the right vehicle, interception, pedestrian jaywalking, crossroad hazard) in the simulator and identified response methods and cognitive response times in case of a hazard, and analyzed whether they differed statistically by age group, gender, risk situation and speed.

전업주부의 영아기 자녀 양육경험에 관한 현상학적 연구

한현이 건신대학원대학교 2020 국내박사

이 연구는 영아기 자녀를 양육하는 전업주부들의 체험된 경험을 탐구하여 그들의 양육경험은 어떠한 의미이며 그 본질이 무엇인지를 밝히는 것이다. 연구를 위해 영아기 자녀를 양육하는 전업주부 3명을 연구 참여자로 선정하였다. 자료 분석은 맥스 반 매넌(Max van Manen)의 현상학적 연구방법을 적용하였다. 전업주부들의 영아기 자녀 양육 경험은 시간과 공간, 신체와 관계라는 반 매넌의 사차원 체험양식을 통해 나타났다. 사차원 양식을 통해 드러난 주제와 연구의 결과를 이야기치료적 관점에서 살펴보고 전업주부들을 위한 이야기치료 방안을 모색하였다. 첫째, 전업주부들의 체험한 것으로의 시간성은 행복과 성장의 시간과 고통의 시간이었다. 둘째, 전업주부들의 체험한 것으로의 공간성은 제한된 집이라는 공간과 편안한 공간으로서의 집이었다. 관련된 주요감정은 외로움과 안전감이었다. 셋째, 전업주부들의 체험한 것으로의 신체성은 달라진 자신들의 모습으로 인한 혼란과 신체적 고통이었다. 넷째, 전업주부들의 체험한 것으로의 관계성은 달라진 자기 정체성의 영향 아래 구성되었다. 영아를 돌보아야 하는 어머니로서의 정체성은 성장하고 발전하려는 개인으로서의 정체성을 제한하였다. 연구 참여자 들의 시간은 공간과 신체 안에 있었다. 타인과의 관계는 그들 자신과 의 관계에 영향을 주었다. 이야기치료의 실제는 영아기 자녀들을 양육하는 전업주부들을 위해 이들이 자신의 인생에 있어 더 나은 선택을 할 수 있도록 자기와의 관계성을 강화하고, 다른 여성들과의 연대를 통한 공동체를 구성하여 자신의 새로운 이야기를 유지해 나갈 수 있도록 지지할 수 있다. 주요용어: 이야기치료, 전업주부, 영아, 양육 경험, 현상학적 연구

국산 베리류의 기능성 성분 비교 및 버섯균사체 배양에 의한 아로니아 활성 변화

한현아 전북대학교 일반대학원 2018 국내석사

An excessive nutrients in the body are exchanged in the form of radicals in the process of metabolism which are negative factor posing cellular injury. Thus it is very important to discover materials and resources related with inhibiting free radicals. As increasing interest in this, a consumption of the berries containing antioxidants has been increasing as of late. Therefore, the first objective of this study was to compare an effect of extraction solvent for blueberry, aronia, Korean raspberry, mulberry, blackberry and red raspberry which are cultivated in Korea, to evaluate an antioxidant activity of polyphenol and anthocyanin. The second objective of this study was to decrease the tannin content of aronia that has a high antioxidant activity using mushroom mycelia. The main findings are as follows. 1. To evaluate an effect of extraction solvent for the berries, blueberry and aronia extracts were extracted using methanol, ethanol and acetone. The study was progressing to compare antioxidants content, such as total phenol, total flavonoid and anthocyanin, and their activity. The total phenol and total flavonoid content was the highest in the methanol solvent. There was no difference in two component’s content in the range of 50-100% methanol concentration. The radical scavenging activity of DPPH and ABTS was the highest in the methanol and ethanol solvents. In the ethanol solvent, these activity was no difference based on the ethanol concentration. With regard to the methanol solvent, these activity was shown the best record in 70 and 100% methanol concentration. An anthocyanin content of both all blueberry and aronia was the highest in the 70% methanol solvent. 2. The total phenol content showed a significant difference according to the berries variety. The total phenol content was in the order of aronia (135.5 ㎎/g), mulberry (69.2 ㎎/g), Korean raspberry (66.1 ㎎/g), and red raspberry (17.0 ㎎/g), respectively. The total flavonoid content was the highest in aronia (8.5 ㎎/g), followed by Korean raspberry (6.0 ㎎/g), mulberry (4.8 ㎎/g), blueberry (4.0 ㎎/g), and red raspberry (1.0 ㎎/g). The anthocyanin content in the Korean raspberry was 24.4 ㎎/g, which is the highest among the berries. The aronia (15.4 ㎎/g) and mulberry (12.2 ㎎/g) contents were the next best thing to the Korean raspberry. A similar content in both all blueberry and blackberry was evaluated, which is higher than that of red raspberry. Among 6 kind of berries, an ascorbic acid content of red raspberry was higher than that of the others. The ascorbic acid content of blueberry was 7.9 ㎎/g. Korean raspberry and blackberry’s content was similar. The ascorbic acid content of blueberry was the lowest as 3.1 ㎎/g. There were various phenolic acids, flavonoids and these glycosides in the berries. This study and previous other researches were shown a similar and different result owing to the difference of ripening degree, aging, variety, and cultivation method of the berries. 3. The antioxidant activity of the berries were investigated using 3 kinds of method such as DPPH, ABTS radical scavenging activity, and FRAP. The DPPH radical scavenging activity of aronia was 43.3 TE uM/g which is the highest among 6 kind of berries. Also, ABTS radical scavenging activity and FRAP in aronia was 712.6 TE uM/g and 34.4 TE uM/g, respectively. 4. As to aronia, its antioxidant activity was the highest among 6 kind of berries. But there is a limit consumption of aronia due to the astringent taste. Thus, We focused on decreasing an its taste using Lentinus edodes muycelia and phellinus linteus mycelia. While aronia was cultured with both mushroom mycelia, there was no difference in pH value as time was increasing. During the cultivation, the total acid value was decreased up to 12 hours. Since then it was increased. The sugar content in the Control was increased from 6.6 to 7.0 °Bx, in the aronia treated with Lentinus edodes mycelia decreased from 6.9 to 6.2 °Bx which was increased again after 48 hours into 6.9 °Bx. This pattern can be attributed to use a polysaccharide of aronia. The Hunter’s "L" value in the aronia treated with phellinus linteus mycelia was exchanged 27.9 into 28.2 after 48 hours, "a" value was decreased 18.5 into 16.1, "b" value was increased 7.4 into 10.6. A conversion of some part of pigment was contributed to increase a value. 5. Total polyphenol content in the aronia treated with Lentinus edodes mycelia was decreased as time was increasing. Its content in the aronia treated with phellinus linteus mycelia was decreased compared to the Control up to 24 hours, but decreased after 48 hours. Total flavonoid content in the control was slightly changed 38.4 ㎎/g DW at no treatment into 34.7 ㎎/g DW at 48 hours. In the aronia treated with Lentinus edodes mycelia, it was changed 37.1 ㎎/g DW at no treatment into 31.8 ㎎/g DW at 48 hours. In the aronia treated with phellinus linteus mycelia, it was largely changed 42.6 ㎎/g DW at no treatment into 32.6 ㎎/g DW at 48 hours. Taken together, a kind of mushroom mycelia and a difference of components added on the medium could be changed polyphenol and flavonoid content. 6. A tannin content of the aronia treated with Lentinus edodes mycelia was changed 64.2 ㎎/g DW into 57.9 ㎎/g DW. A tannin content of the aronia treated with phellinus linteus mycelia was changed 77.3 ㎎/g DW into 47.9 ㎎/g DW. 7. As to DPPH radical scavenging activity, there was no difference in the aronia treated with Lentinus edodes mycelia. In ABTS radical scavenging activity was decreased in the all treatments as time was increasing. A FRAP activity in the aronia treated with Lentinus edodes mycelia was sharply decreased as time was increasing. At 48 hours, its activity was 632 ㎎/g. A FRAP activity in the aronia treated with phellinus linteus mycelia was 722 ㎎/g after 48 hours. It was slightly increased compared to the Control. 8. In the sensory evaluation, overall acceptability was the highest in the aronia treated with phellinus linteus mycelia. The score of taste, flavor, color, and overall acceptability was evaluated by the 7 point scoring method, from 0 (very bad) to 7 (very good). The highest decrease of astringent taste appeared as a 5.8 scale in the aronia treated with phellinus linteus mycelia for 48 hours. 체내 대사과정에서 생성된 활성산소 (active oxygen)는 세포 노화뿐만 아니라 각종 만성 대사질환 발병의 원인이 되는 등 건강에 부정적 요인으로 작용한다. 따라서 안전성이 확보되고 활성산소에 의한 산화를 효율적으로 억제할 수 있는 물질이나 소재를 발굴하는 것은 매우 중요하며, 특히 베리류에는 천연 항산화 물질이 풍부하게 함유된 것으로 밝혀져 국내에서도 재배 및 소비가 늘어나고 있다. 따라서 본 연구에서는 첫 번째로 국내에서 재배되고 있는 블루베리,아로니아, 복분자, 오디, 블랙베리 및 산딸기의 기능 성분에 대한 추출 용매의 영향 비교, 항산화 활성에 기여하는 polyphenol, anthocyanin 성분들을 분석함과 동시에 항산화 활성을 비교하였다. 두 번째로는 polyphenol류의 함량과 항산화 활성이 가장 높지만, 떫은 맛이 강해 생과로 섭취하기에는 한계가 있는 아로니아를 버섯균사체 배양액으로 생물전환해 탄닌 함량을 감소시키고 건강 기능성의 증대 가능성을 조사하였다. 1. 베리류의 기능 성분에 대한 추출 용매의 영향을 조사하기 위해 아로니아와 블루베리를 메탄올, 에탄올, 아세톤 및 이들의 수용액으로 추출하여 total phenol, total flavonoid, anthocyanin 함량 및 항산화 활성을 측정 하였다. 그 결과 50-100% 메탄올 수용액으로 추출하였을 때 total phenol 및 total flavonoid의 함량이 높았다. DPPH와 ABTS 라디칼 소거능은 추출 용매로서 메탄올과 에탄올을 사용하였을 때 높았고, 에탄올의 경우 농도 차이에 따른 항산화 활성에 별 차이가 없었으나 메탄올의 경우 70% methanol 수용액 및 100% 메탄올로 추출한 용액에서 DPPH 및 ABTS 라디칼 소거능이 높았다. 아로니아와 블루베리의 색소인 anthocyanin 추출에 대한 추출 용매의 영향을 조사한 결과는 70% 메탄올 수용액으로 추출하는 것이 효과적이었다. 2. 아로니아의 total phenol 함량은 135.5 ㎎/g으로서 베리류 중 가장 많이 함유되어 있었고 오디와 복분자는 각각 69.2 ㎎/g과 66.1 ㎎/g로 유사한 수준으로 함유되어 있었으며, 산딸기에서는 17.0 ㎎/g이었다. Total flavonoid 함량의 경우 아로니아에서 8.5 ㎎/g로 본 실험에서 사용한 베리류 중 가장 함량이 높았고, 그 다음은 복분자 (6.0 ㎎/g), 오디 (4.8 ㎎/g), 블루베리 (4.0 ㎎/g) 순이었고 산딸기에서는 1.0 ㎎/g로 가장 낮았다. Anthocyanin 함량은 복분자가 24.4 ㎎/g으로 가장 많이 검출되었고 그다음으로는 아로니아 (15.4 ㎎/g), 오디 (12.2 ㎎/g) 순으로 많이 검출되었다. Ascorbic acid의 함량은 다른 베리류 보다 산딸기에서 함량이 높았다. 또한, 블루베리에서는 7.9 ㎎/g 함유되어 있었고 복분자와 블랙베리는 거의 비슷한 수준으로 함유되어 있었으며 아로니아의 ascorbic acid 함량은 3.1 ㎎/g로 6종의 베리류 중 가장 낮았다. 3. DPPH radical 소거 활성은 아로니아에서 43.3 TE uM/g로 본 실험에 사용한 6종의 베리류 중에 가장 높게 나타났다. ABTS radical 소거활성과 FRAP 활성 역시 아로니아에서 712.6 TE uM/g, 34.4 TE uM/g으로 가장 항산화활성이 높았다. 4. 표고버섯균사체와 상황버섯균사체를 이용한 생물전환 아로니아의 pH는 처리 시간의 증가에도 큰 차이를 보이지 않았고 총 산도는 표고버섯 균사체에 의한 처리 시 12시간까지 감소하다 이후에 증가하는 경향을 보였다. 당도는 대조구가 6.6 °Bx에서 7.0 °Bx로 약간 증가하였고 표고버섯균사체 처리에서는 6.9 °Bx에서 6.2 °Bx로 감소한 뒤 48시간 처리 후에는 다시 6.9 °Bx로 증가하였다. 이러한 변화는 버섯균사체들이 반응 초기에 당을 이용한 뒤 이후에 아로니아의 다당체들을 분해하여 다시 증가하였다고 생각된다. 색도는 상황버섯균사체 처리에서 반응 시간이 증가할수록 명도는 27.9에서 48시간 이후 28.2로 약간 증가하였고, 적색도는 18.5에서 16.1로 감소하였으며, 황색도는 7.4에서 10.6으로 증가하였다. 이것은 antocyanin색소의 일부가 파괴 및 변화되어 황색도가 증가하였다고 생각된다. 5. Tannin 함량은 표고버섯 균사체로 처리하였을 때 64.2 ㎎/g(48시간 반응)로, 상황버섯 균사체 처리에서는 47.9 ㎎/g(48시간 반응)로 가장 많이 감소하여 버섯균사체 처리에 의해 떫은 맛의 저감 효과를 얻을 수 있지만 Total phenol, Total flavonoid의 분해로 함량이 감소하였다. 6. 항산화 활성은 DPPH, ABTS radical 소거활성, FRAP 활성은 반응시간이 증가할수록 감소하는 경향을 보였다. 하지만 3가지처리(대조구, 표고버섯 균사체, 상황버섯 균사체) 48시간에서는 DPPH radical 소거활성은 유의성이 없었고 ABTS radical 소거활성은 대조구와 표고버섯 균사체 처리는 유의적 차이가 없었으며 상황버섯 균사체 처리에서 감소하였다. 또한, FRAP 활성은 상황버섯 균사체 처리에서 가장 높았다. 이러한 결과는 버섯균사체 종류에 따라 항산화 활성에 다르게 영향을 미침을 유추할 수 있다. 버섯균사체로 생물전환한 아로니아 분말의 관능평가는 7점 채점법으로 실시하였으며 전반적인 만족도는 상황버섯균사체 처리구에서 좋았고, 떫은 맛 감소 효과는 상황버섯균사체 48시간처리에서 5.8로 가장 높았다.